To follow a three-step process to insert a PivotTable report that is based on your worksheet data, look at Quick start: Create a PivotTable report.
To get the full scoop on PivotTables (and PivotCharts), or to create a PivotTable that is based on an external data source, you'll want to follow the instructions in Create or delete a PivotTable or PivotChart report instead.
Because PivotTables aren't easy to understand, the following video may be helpful:
Watch this 1-minute video where it show you how to add and delete words from the spell check dictionary. By the way, these same steps work for Access, Excel, OneNote, PowerPoint, Project, Publisher, and Visio:
The following video is taking a look at project plans as part of our 3-part 5-minute makeover series for PowerPoint 2010.
Watch the video below, and then get the template used in the makeover: